Picker mechanism for looms.



J. H. MALLEY.

PIOKER MECHANISM FOR LOOMS.

APPLICATION FILED D30. 9, 1908.

Patented Sept. 14, 1909.

INVIN TUE. lyw

WI TNEEEEE.

I I, w 'I V r ATIUHNEY:

A DREVI B GRAHAM CO PHOTO GWPHERS Wlsm 0" D C JOHN H. MALLEY, FHARRISVILLE, RHODE ISLAND.

PICKER MECHANISM FOR LOOMS.

Application filed December 9, 1908.

To all whom it may concern:

Be it known that I, JOHN H. MALLEY, a citizen of the United States,residing at Harrisville, in the county of Providence and State of RhodeIsland, have invented a new and useful Improvement in Picker Mechanismfor Looms, of which the following is a specification.

This invention has reference to an improvement in looms and moreparticularly to an improvement in the picker mechanism of looms.

In the usual form of looms the picker sticks are operated by thesweep-sticks which are attached to the picker sticks by loop strapssecured to the picker sticks by screws which screw through the straps'into the picker sticks. The picker sticks are provided with holes forthe screws which materially weaken the picker sticks at the point wherethe greatest power or strain is exerted on the picker sticks. The loopsrequire to be adjusted vertically on the picker sticks when the weightof the cloth to be woven on the loom is changed, and this has heretoforebeen accomplished by changing the position of the screws with the loopin the holes in the picker sticks. Vith this adjustment, which is crudeand limited, it is impossible to give the fine vertical adjustment ofthe sweep sticks on the picker sticks which is required for differentcounts or weights of cloth.

The object of my invention is to improve the construction of a pickermechanism for looms, whereby the sweep stick is attached to and may befinely adjusted on the picker sticks without weakening the picker stick.

A further object of my invention is to flexibly connect the sweep stickswith the adjusting members, whereby the sweep sticks are held in apredetermined position on the picker sticks without interfering with thefree forward and back or in and out movements of the picker sticks.

My invention consists in the peculiar and novel construction of a sweepstick supporting and adjusting attachment for the picker mechanism oflooms, said attachment having details of construction, as will be morefualy set forth hereinafter and claimed.

Figure 1 is a front view of a loom, showing the picker mechanismprovided with my improved sweep stick supporting and adjustingattachments. Fig. 2 is an enlarged detail front view of the right handend of the loom, showing more clearly the flexible con- Speoification ofLetters Patent.

Patented Sept. 14;, 1909. Serial No. 466,595.

nection between the adjusting member and the sweep stick. Fig. 3 IS anenlarged detail sectional view taken on l1ne 3 3 of Fig. 2

looking at the face of the attachment. Fig.

ing arms of a loom provided with my improved sweep stick supporting andadjusting attachments f f, as shown in Fig. 1.

The picker sticks c 0 are pivotally secured to the outer ends of therocking rail 6 in the usual way. The sweep sticks d (Z each have aU-shaped strap 0 which extends loosely around the picker stick and issecured to the outer end of the sweep stick, and the inner ends of thesweep sticks are pivotally secured to the free ends of the picking arms6 c which are operated by the picking cones and picking bowls (notshown) of the loom in the usual way.

The sweep stick supporting and adjusting attachments f consist of rightand left fixed members 7 7 each constructed to have the undercutvertical ways 8 8, the two forwa-rdly-extending side arms 9 9 adjacentthe top, the central screw-threaded hole 10 between the Ways 8 8 and theinternal screw threaded boss 11 on the back, a slide member 12 adaptedto have a sliding fit between the ways 8 8 and constructed to have onits lower end the outwardly-extending arm 13 having an eye 14k on itsend, the forwardly-extending arm 15 adjacent the arm 13, the verticalscrew 16 rigidly secured at its lower end to the end of the arm 15 andextending upward through holes in the ends of the arm 9 9 on the fixedmember 7, the nut 17 in screw-thread engagement with the screw 16between the arms 9 9 on the fixed member 7 and forming with the screw anadjustment for the slide member 12, the vertical slot 18 and the thumbscrew .19 which extends through the slot 18 into the screw threaded hole10 in the fixed member 7 and rigidly secures the slide member 12 to thefixed member 7 in the adjusted position and the flexible connectingmember 20 constructed preferably in the form of a tightly coiled springwhich is pivotally secured at its lower end to the eye 14 on the end ofthe arm 13 of the slide member 12 pivotally secured at its upper end tothe outer end of the sweep stick at, as shown in Fig. 2. The fixedmember 7 is rigidly secured to the outer face of the side frame a underthe sweep stick cl and on a vertical line with the same by a bolt 21which extends through the side frame a into the screw-threaded boss 11on the back of the fixed member, as shown in Fig. 4.

In the operation of my improved sweep stick adjusting attachment thestrap 6 which is secured to the end of the sweep stick d is held in itsadjusted position on the picker stick 0 by the flexible connectingmember 20* which swings on its pivots and adjusts itself to themovements of the picker stick, which is operated in the usual waytothrow the shuttle across the warp of the loom.- The strap ismicro-metrically usted vertically on the picker stick to vary the powerof the sweep stick on the picker stick for different counts or weightsof cloth by turning the nut 17 on the screw 16, which raises or lowersthe slide member 12 on the fixed member 7 and through the arm 13' andthe member 20 correspondingly raises or lowers the sweep stick d andstrap on the picker stick.

It is evident that the slide member 12 could be adji istably secureddirectly to the lower frame if desired by a bolt through the slot 18 inthe slide member without materially ati'ecting the spirit of myinvention.

Having thus described my invention, I claim as new and desire to secureby Letters Patent I 1. In a picker mechanism for loom-s, a fixed member,a slide member, a connecting member pivotally connected with the slidemember and with the sweepstick of the loom, means for slidab-lyconnecting the sweep stick with the picker stick,- means for adjustablysecuring the slide member to the fixed member, and means for rigidlysecuring the fixed member to the frame of the loom.

2. In a picker mechanism for looms, a fixed member, a slide member onthe fixed member, a connecting member pivo-tally connected with theslide member and with the sweep stick oi the loom, means for slidablyconnecting the sweep stick with the picker stick, means for adjustingthe slide member on the fixed member, and means for rigidly securing thefixed member to the frame of the loom.

3. In a picker mechanism for looms, a fixed member, a slide member onthe fixed member, a connecting member pivotally con- 3 necting the sweepstick with the picker stick, means for adjusting the slide member on thefixed member, means for securing the slide member to the fixed member,and

5 means for rigidly securing the fixed mem her to the frame of the loom.

4. In a picker mechanism for looms, a

fixed member having vertical ways, a slide member slidably supported inthevertical 1 ways in the fixed member, a connecting member p' ivotallysecured at its lower end to j the slide member and at its upper end to ithe sweep stick of the loom, means for slid ably connecting the end ofthe sweep stick with the picker stick, means for adjusting the slidemember in the fixed member, means for securing the slide member to thefixed member in the adjusted position, and means for rigidly securingthe fixed member to the frame of the loom under the sweep stick. i

In a picker mechanism for looms, the

combination with the frame a, the picker stick 0 and the sweep stick (Zof a loo-m, of a U-shaped' strap 6 extending around the picker stick 0and secured to the end of the sweep stick d, and a sweep stick adjustingattachment consisting of as fixed member 7 having the undercut Verticalways 8 8' and the two forwardly-extending side arms 9 9 adjacent thetop, a slide member 12 adapted tohave a sliding fit between the ways 8 8and on its lower end an arm 13 with an eye 14 on its end, aforwardly-extending arm 15, a vertical screw l6 rigidly securedatitslower end to the arm 15 and extending upward throngh holes in thearms 9 9" on the fixed member 7 a nut 17 in screw-thread engagement withthe screw 16 between the arms 9 9 and forming with the screw 16 anadjustment for the slide member 12,- and a flexible connecting member 20pivotally secured at its lower end to the eye 1% on the arm 13 andpivotally secured at its upper end tothe sweep stick (Z, means forsecuring the slide member l2 to the fixed member 7, and means forrigidly securing the fixed member 7 to the frame at of the loom.

In testimony whereof I have signed my name to this specification thepresence of two subscribing witnesses.

JOHN H. MALLEY.

Witnesses ADA- E. HAGERTY, J. A. MILLER.

